Blood is delivered to each nephron by
a. an efferent arteriole.
b. peritubular capillaries.
c. a renal capsule.
d. an afferent arteriole.
e. proximal tubules.
D
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The subdividing of some category of similar
resources in a way that allows competing species to exist is
a. competitive exclusion. b. social parasitism. c. predation. d. mimicry. e. resource partitioning
The nervous system is to the ectoderm as the skeleton is to the
A. allantois. B. chorion. C. endoderm. D. blastula. E. mesoderm.
Daily and seasonal fluctuations in temperature, salinity, and dissolved gases are most extreme in
A) the intertidal zone. B) sandy beaches. C) the estuary. D) the open ocean.
What does one call a mutation that occurs in a DNA sequence, but leaves the resulting amino acid sequence unchanged?
What will be an ideal response?